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authorChristoph Hellwig <hch@infradead.org>2012-06-17 18:40:52 -0400
committerNicholas Bellinger <nab@linux-iscsi.org>2012-07-16 17:29:12 -0700
commit0c2ad7d1132d8b089b1d37875917858e03610019 (patch)
treee86cc118497605026a15c0e97630c57aeb625793 /drivers/target/target_core_pscsi.c
parente1306bdab3af8bef620990a99e613f99eb30065c (diff)
downloadlinux-0c2ad7d1132d8b089b1d37875917858e03610019.tar.bz2
target: add struct spc_ops + initial ->execute_rw pointer usage
Remove the execute_cmd method in struct se_subsystem_api, and always use the one directly in struct se_cmd. To make life simpler for SBC virtual backends a struct spc_ops that is passed to sbc_parse_cmd is added. For now it only contains an execute_rw member, but more will follow with the subsequent commits. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/target_core_pscsi.c')
-rw-r--r--drivers/target/target_core_pscsi.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index cb4c6b1195d4..6e32ff6f2fa0 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -55,6 +55,7 @@
static struct se_subsystem_api pscsi_template;
+static int pscsi_execute_cmd(struct se_cmd *cmd);
static void pscsi_req_done(struct request *, int);
/* pscsi_attach_hba():
@@ -1081,17 +1082,20 @@ static int pscsi_parse_cdb(struct se_cmd *cmd)
case WRITE_16:
case WRITE_VERIFY:
cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
- break;
+ /* FALLTHROUGH*/
default:
+ cmd->execute_cmd = pscsi_execute_cmd;
break;
}
return 0;
}
-static int pscsi_execute_cmd(struct se_cmd *cmd, struct scatterlist *sgl,
- u32 sgl_nents, enum dma_data_direction data_direction)
+static int pscsi_execute_cmd(struct se_cmd *cmd)
{
+ struct scatterlist *sgl = cmd->t_data_sg;
+ u32 sgl_nents = cmd->t_data_nents;
+ enum dma_data_direction data_direction = cmd->data_direction;
struct pscsi_dev_virt *pdv = cmd->se_dev->dev_ptr;
struct pscsi_plugin_task *pt;
struct request *req;
@@ -1259,7 +1263,6 @@ static struct se_subsystem_api pscsi_template = {
.free_device = pscsi_free_device,
.transport_complete = pscsi_transport_complete,
.parse_cdb = pscsi_parse_cdb,
- .execute_cmd = pscsi_execute_cmd,
.check_configfs_dev_params = pscsi_check_configfs_dev_params,
.set_configfs_dev_params = pscsi_set_configfs_dev_params,
.show_configfs_dev_params = pscsi_show_configfs_dev_params,